First off, I realize this is a broad question that depends on many variables. It's kind of like forecasting the weather, which I do for a living. I have 1994 Honda Accord EX with aprox. 92K on it. Mobil 1 has been the only oil used since the birth of the car. I change the oil according to the severe service schedule, or once every 3,750 miles. I follow the manufac. suggested maintenance schedule religiously. I baby the vehicle. I never run the engine over 4,000 RPM. I should be more aggressive becasue I've heard Honda engines can take a lot of abuse. Can anyone give me a very rough estimate of how long my engine should last?